Material: ABS & TPU

Bluetooth main control chipset: BLUETRUM AB5656C

BT Version: 5.4

Transmission distance: 10M

loudspeaker units:  Φ14.2mm

Lithium battery capacity of earbuds: 50mAh*2

lmpedance: 16Ω+15%

Lithium battery capacity of charge case: 400 mAh

Input: Type-C 5.0V--0.3A

Sensitivity of MIC: -42dB+3dB

Music playback time: 6 hours

Talk time' 4 hours

Charging time: 1.5 hours

Dimension: Earbuds,49.8*36.821.39mm

Charge Case: 101*56.39*26.8mm